Machine element.



C. SEYBOLD.

MACHINE ELEMENT.

APPLICATION FILEDVAUGJ, I914.

LQUKWW. Patented Dec. 5,1916.

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CHARLES SEYBOLD, 01F DAYTON, OHIO. v

MACHINE ELEMENT.

woman Specification of Letters Patent.

Application filed August 3, 1914.. Serial Ito. 854,651.

To all whom it may concern:

Be it known that I, CHARLES SEYBOLD, a citizen of the United States, anda resident of the city of Dayton, in the county of Montgomery and Stateof Ohio, have invented certain new and-useful Improvements to papercutting machinery in which there is sometime-s liability ofover-straining the gearing and other operating mechanism, but theinvention is, of course, equally applicable to other power drivenmachinery readily understood.

The invention consists of that certain novel construction to behereinafter particularly pointed out and claimed, whereby any shaft anddriving pulleys employed to transmit the power to the machine mechanismshall be coupled to the driven elements of the machine mechanism bymeans of a grooved washer which is intentionally the weakest piece inthe train of mechanism, so that the washer will break and cut ofl' thedriving power before any further damage can be done under undue strains.

In the drawings, Figure 1 is a side elevation of a. portion of a machineshowing part of a side standard with driving gears with my inventionapplied thereto. Figs. 2, 3 and 4 are perspective views respectively ofa driving pinion, a driving shaft and a grooved washer embodying myinvention, taken separately. Fig. 5 is a. longitudinal section of thesame/parts assembled.

As the invention is applicable to a great variety of machines, I havenot endeavored to illustrate any complete. machine. A portion of a sidestandard for a machine is indicated at 1, with partial train of drivingare and pinions 2, 3 and 4t, suitably jouras will bev na-led in theframe. The main driving shaft 5 is driven in any suitable way as by beltand pulley 6, and the driving power is applied to the machine throughthe driving pinion 7 mounted on the shaft 5.

The pinion is keyed! to the shaft by the grooved washer 8; The tenons 9,9, on the pinion are brought into alinement with the tongue or tenon 10on the end of the shaft,

Patented Dec. 5, 1916..

and the washer 8 with its groove 11 is then placed over the end of theshaft with its groove engaging the tenons, and the washer is held inplace by the screw 12. This washer 8 is purposely made the weakest piecein the machine, and therefore if there is any undue strain thrown on themechanism this washer will break and thus uncouple the power shaft 5.Under normal conditions, however, the grooved washer is amply suflicientto lock the pinion 7 to the shaft, but as soon as the washer breaks, thepinion, which otherwise is mounted loosely on the shaft, allows thedriving shaft to turn freely.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a power driven machine, a shaft, provided with an elongated lug onthe end thereof, a gear for transmittin power to said shaft mounted onthe sha ,the gear provided with lugs on the face thereof, said lugsbeing in line with each other, and a breakable washer having a singlegroove to engage the gear lugs and the shaft lug, and means for securingthe washer against the end of the shaft. 5

2. In a. power driven machine, a shaft, a gear revoluble on the shaft,said shaft at its end provided with a transverse lug, the gear;- havinglugs on the face thereof of a shape and length to forma contmuatlon fromboth ends of the shaft lug when the gear is at the end of the shaft, anda washer having a single slot to engage said lugs, and havin means formounting it against the end 0 the shaft.

CHARLES SEYBOIJD.

Witnesses WM. I. NZELER, R. R. Manes.

